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Prompt learning is an effective paradigm that bridges gaps between the pre-training tasks and the corresponding downstream applications. Approaches based on this paradigm have achieved great transcendent results in various applications.…

Information Retrieval · Computer Science 2022-09-26 Zhigang Kan , Linhui Feng , Zhangyue Yin , Linbo Qiao , Xipeng Qiu , Dongsheng Li

Most Reading Comprehension methods limit themselves to queries which can be answered using a single sentence, paragraph, or document. Enabling models to combine disjoint pieces of textual evidence would extend the scope of machine…

Computation and Language · Computer Science 2018-06-12 Johannes Welbl , Pontus Stenetorp , Sebastian Riedel

In multi-turn dialog, utterances do not always take the full form of sentences \cite{Carbonell1983DiscoursePA}, which naturally makes understanding the dialog context more difficult. However, it is essential to fully grasp the dialog…

Computation and Language · Computer Science 2020-12-15 Xiuying Chen , Zhi Cui , Jiayi Zhang , Chen Wei , Jianwei Cui , Bin Wang , Dongyan Zhao , Rui Yan

Retrieval-Augmented Generation (RAG) encounters efficiency challenges when scaling to massive knowledge bases while preserving contextual relevance. We propose Hash-RAG, a framework that integrates deep hashing techniques with systematic…

Information Retrieval · Computer Science 2025-06-04 Jinyu Guo , Xunlei Chen , Qiyang Xia , Zhaokun Wang , Jie Ou , Libo Qin , Shunyu Yao , Wenhong Tian

Large language models that use retrieval augmented generation have the potential to unlock valuable knowledge for researchers, policymakers, and the public by making long and technical climate-related documents more accessible. While this…

Computation and Language · Computer Science 2025-05-22 David Thulke , Jakob Kemmler , Christian Dugast , Hermann Ney

Retrieval-Augmented Generation (RAG) systems lose retrieval accuracy when similar documents coexist in the vector database, causing unnecessary information, hallucinations, and factual errors. To alleviate this issue, we propose CHOP, a…

Computation and Language · Computer Science 2026-04-20 Hyunseok Park , Jihyeon Kim , Jongeun Kim , Dongsik Yoon

Advancements in Large Language Models (LLMs) have extended their input context length, yet they still struggle with retrieval and reasoning in long-context inputs. Existing methods propose to utilize the prompt strategy and retrieval head…

Computation and Language · Computer Science 2025-05-16 Han Peng , Jinhao Jiang , Zican Dong , Wayne Xin Zhao , Lei Fang

Contextual memory integration remains a high challenge in the development of language models, particularly in tasks that require maintaining coherence over extended sequences. Traditional approaches, such as self-attention mechanisms and…

Computation and Language · Computer Science 2025-08-11 George Applegarth , Christian Weatherstone , Maximilian Hollingsworth , Henry Middlebrook , Marcus Irvin

Retrieval-augmented generation (RAG) is increasingly deployed in enterprise search and document-centric assistants, where responses must be grounded in long and complex source materials. In practice, verifying that generated answers…

Computation and Language · Computer Science 2026-03-26 Xunzhuo Liu , Bowei He , Xue Liu , Haichen Zhang , Huamin Chen

Retrieval-augmented generation (RAG) has emerged as an approach to augment large language models (LLMs) by reducing their reliance on static knowledge and improving answer factuality. RAG retrieves relevant context snippets and generates an…

Computation and Language · Computer Science 2025-02-21 Juraj Vladika , Florian Matthes

Long context compression is a critical research problem due to its significance in reducing the high computational and memory costs associated with LLMs. In this paper, we propose Activation Beacon, a plug-in module for transformer-based…

Computation and Language · Computer Science 2024-10-14 Peitian Zhang , Zheng Liu , Shitao Xiao , Ninglu Shao , Qiwei Ye , Zhicheng Dou

In long-context question answering, selecting the appropriate scope of context for a query remains a key and unresolved challenge. Insufficient context can lead to missing essential information, whereas excessive context often introduces…

Artificial Intelligence · Computer Science 2026-01-22 Siyuan Zhu , Chengdong Xu , Kaiqiang Ke , Chao Yu

Due to the rapid generation and dissemination of information, large language models (LLMs) quickly run out of date despite enormous development costs. To address the crucial need to keep models updated, online learning has emerged as a…

Machine Learning · Computer Science 2024-11-05 Jihoon Tack , Jaehyung Kim , Eric Mitchell , Jinwoo Shin , Yee Whye Teh , Jonathan Richard Schwarz

Modern video codecs and learning-based approaches struggle for semantic reconstruction at extremely low bit-rates due to reliance on low-level spatiotemporal redundancies. Generative models, especially diffusion models, offer a new paradigm…

Image and Video Processing · Electrical Eng. & Systems 2026-02-06 Maojun Zhang , Haotian Wu , Richeng Jin , Deniz Gunduz , Krystian Mikolajczyk

Robust Policy Search is the problem of learning policies that do not degrade in performance when subject to unseen environment model parameters. It is particularly relevant for transferring policies learned in a simulation environment to…

Machine Learning · Computer Science 2021-11-23 Sai Kiran Narayanaswami , Nandan Sudarsanam , Balaraman Ravindran

Retrieval-Augmented Generation (RAG) has recently demonstrated the performance of Large Language Models (LLMs) in the knowledge-intensive tasks such as Question-Answering (QA). RAG expands the query context by incorporating external…

Machine Learning · Computer Science 2024-06-18 Zijian Hei , Weiling Liu , Wenjie Ou , Juyi Qiao , Junming Jiao , Guowen Song , Ting Tian , Yi Lin

Language models can be augmented with a context retriever to incorporate knowledge from large external databases. By leveraging retrieved context, the neural network does not have to memorize the massive amount of world knowledge within its…

Computation and Language · Computer Science 2022-10-13 Zonglin Li , Ruiqi Guo , Sanjiv Kumar

To diversify and enrich generated dialogue responses, knowledge-grounded dialogue has been investigated in recent years. The existing methods tackle the knowledge grounding challenge by retrieving the relevant sentences over a large corpus…

Computation and Language · Computer Science 2022-04-26 Yan Xu , Etsuko Ishii , Samuel Cahyawijaya , Zihan Liu , Genta Indra Winata , Andrea Madotto , Dan Su , Pascale Fung

In the era of large language models, applying techniques such as Retrieval Augmented Generation can better address Open-Domain Question-Answering problems. Due to constraints including model sizes and computing resources, the length of…

Computation and Language · Computer Science 2024-12-24 Zhuo Chen , Xinyu Wang , Yong Jiang , Pengjun Xie , Fei Huang , Kewei Tu

Prompt compression methods enhance the efficiency of Large Language Models (LLMs) and minimize the cost by reducing the length of input context. The goal of prompt compression is to shorten the LLM prompt while maintaining a high generation…

Computation and Language · Computer Science 2025-08-25 Tinghui Zhang , Yifan Wang , Daisy Zhe Wang